george s



(No Model.)

c; s. NEELY. AUTOMATIC SAFETY VALVE FOR WATER GAGES.

No. 524,393. Patented Aug. 14, 1894.

. U ITED STATES PATENT ()FFICE.

GEORGE S. NEELY, OF PACIFIC, MISSOURI, ASSIGN OR OF ONE-HALF TO WILLIAMM. BRAZEALE, OF SAME PLACE.

I AUTOMATIC SAFETY-VALVEVFOR WATER-GAGES.

SPECIFICATION forming part of Letters Patent No. 524,393, dated August14, 1894. Application filed July 29, 1893. Renewed July 17, 1894; SerialNo. 517,831- (No model.)

with an ordinary gage glass, whereby efficient' means shall be providedfor automatically closing the steam or water ports and preventing theescape of steam and water, in case of the breakage of the glass, and atthe same time to provide eflicient means for keeping the inlet passageclosed, irrespective ofthe pressure in the boiler, until a new glasscould be inserted in position.

With these and other objects in view which will readily appear as thenature of the invention is better understood, the same consists in thenovel construction, combination, and arrangement of parts hereinaftermore fully described, illustrated, and claimed.

In the accompanying drawings:-Figure l is an enlarged central sectionalview of an automatic Water gage valve arranged at the lower end of awater gage glass, a portion of which is shown. Fig. 2 is a detailsectional view on the line 2-2 of Fig. 1. Fig. 3 is a similar view onthe line 3-3 of Fig. 1.

Referring to the accompanying drawings, A represents a water gage valvecasing having an upwardly projecting neck B, communicating with theinterior thereof and into which is fitted the lower end of an ordinarywater gage glass O,which is employed in its ordinary use of indicatingthe height of the water in a steam boiler, with which the glass isconnected. It is of course understood that the construction hereindescribed is duplicated at both ends of the glass, but is not shown forthe sake of a clearer illustration of the valve. The valve, casing A, isfurther provided at one side thereof with the off standing inlet chamberor neck D, having an outer exterio'rly threaded end E, engaged by theinlet coupling or nipple F, which is threaded into one side of a steamboiler at a 'for the longitudinally moving valve stem J,

but also serves to hold any suitable packing for such stem in a properposition.

The horizontally moving valve stem J,

which is mounted to slide in the guide plug H, carries upon its outerend, outside of the gland or cap I, a hand Wheel K, by means of whichthe stem maybe readily manipulated, and the said stem carries at itsextreme inner end inside ofv the inlet chamber or neck D, an integralpressure head L, provided with a radial series of wings M, forming waterpassages N, therebetween,and the circular body of said pressure headworks directly in front of the opening in the inlet coupling F, and isof a diameter equaling the same. The said pressure head L, slides freelyin the inlet chamber or neck D, of the valve casing, and at a pointintermediate of the same and the outer end of the valve stem, the latteris further provided with an integral beveled valve disk 0, working atone side of the vertical casing partition P.

The partition P, is formed integrallywith the body of the casing and isarranged centrally and vertically therein, and such partition isprovided at a point near its upper end with a beveled valve opening Qinto which is adapted to fit the valve disk 0, when the same is'throwntherein under the pressure of the steam and water, in case the glass 0should accidentally break. When the water gage glass 0, is unimpairedand the boiler is in use, the valve disk 0, is held away from the valveopening or valve seat Q, in the vertical partition P, so that there is afree passage for the water through theinlet coupling F, and the waterpassages N, of the pressure head L, into the glass 0, so that the latterwill properly indicate the water level in the boiler. The valve isnormally held open and is prevented from becoming accidentally ICO.

closed by jarring or for other causes by reason of the check spring R.The check spring R, is removably secured at one end to the outer side ofthe gland or cap I, and is provided with a spring tongue S, which isadapted to engage either one of the locking grooves T, formed in thevalve stem J, near the outer end thereof, and when the valve 0, is open,the tongue S, engages the outer one of said grooves. Supposing the waterglass 0, to break, the entire pressure of the water and steam passingthrough the coupling nipple F, will be directed against the pressurehead L, and thereby throw the valve 0, onto its seat, so as to cut ofithe further outward flow of the water and steam. This movement causesthevalve stem to move in a direction which brings the inner one of thegrooves T,

up to the spring R, and the valve stem is thereby locked to hold thevalve closed until the necessary repairs are made, even though thepressure in the boiler has materially decreased.

The lower part of the casing A, at the lower end of the verticalpartition P, is bored to form a cylindrical valve chamber U, havingathreaded opening g, at the bottom of the casing, and also provided withthe side ports V, which communicate with the sediment pockets W, formedin the bottom of the casing at both sides of the vertical partition P,therein,

and said cylindrical valve chamber acco1nmo-.

dates therein the two-way Valve plug X. The

valve plug X, is threaded into the lower open ing q, so as to form asteam tight joint with the casing, and is provided with the separatedrain passages a, which communicate with a common discharge or drainpassage Y, formed vertically in the valve plug, and the same is furtherprovided at its outer end with a hand wheel Z, by means of which it maybe readily manipulated. Now it will be apparent that in order to removesediment from the valve seat Q, and the valve disk 0, it is simply nec-'essary to turn the valve disk in the valve seat by manipulating the handwheel K, and such sediment will drop into the sediment pockets. W. Bymanipulating the valve plug X, so as,

to bring the passages w, in a line with either of the ports V, thecasing can be properly drained of such sediment without disturbing anyparts of the valve. This valve plug-or drain cock, X, also provides fordraining the water gage glass 0, when the boiler is not in use.

Changes in the form, proportion and the minor details of constructionmay be resorted to without departing from the principle or sacrificingany of the advantages of this invention, and at this point it may bewell to notethat the valve casing A, is provided on its opposite sideswith the off-standing perforated lugs a, adapted to receive the threadedends of the guard rods b, arranged at the sides of the gage glass 0, andengaged at their extremities by the nuts 0, which secure the same inposition, and said guard rods act in the capacity of protectors for thegage glass by preventing the same from being accidentally broken byobjects coming in contact therewith.

Having thus described the invention, what is claimed, and desired to besecured by Letters Patent, is-

1. In an automatic water gage valve, the valve casing having a centrallyarranged valve seat and an inlet chamber or neck at one side thereof, ahorizontally moving valve stem mounted within the casing and having anintermediate valve disk working at one side of the valve seat, and apressure head at its inner extremity within the inlet chamber or neck,said pressure head having water passages, substantially as set forth.

2. In an automatic Water gage valve, the valve casing fitted onto thelower end .of a water gage glass and provided with a central valve seatand an off-standing cylindrical inlet chamber or neck located at oneside of the valve seat, the inlet coupling nipplefitted to the outer endof said chamber or neck, and

the horizontally moving valve stem mounted within the casing andprovided at an intermediate point with a valve disk working at one sideof the valve seat, and at its inner end with a pressure head slidingwithin said inlet chamber or neck, said pressure head be ing of a soliddiameter equaling that of the inlet coupling and provided with a radialseries of wings forming water passages, substam tially as set forth. g

3. In an automatic water gage valve, the valve casing having a centralvertical partition provided with a valve seat, acylindrical inletchamber or neck at one side of the partition and a guide neck at theopposite side of the partition, a removable guide plug fitted into theguide neck, a horizontally moving valve stem mounted within the casingand having an intermediate valve disk, and a pressure head at its innerextremity within the inlet chamber or'neck, and a check or look devicearranged at one end of the valve stem to hold the same stationary inboth positions thereof, when the valve is closed and opened,substantially as set forth.

4.. In an automatic water gage valve, the valvecasing having a centralvalve seat and an inlet chamber or neck at one side, the horizontallymoving valve stem having an intermediate valve disk and a wingedpressure head moving in the inlet chamber or neck, and locking groovesformed therein near its outer end, and a check spring removablysecuredat one side of the casing and having a tongue adapted to engagethelocking grooves of the valve stem, substantially as set forth.

5. In avalve of the class described, the combination of the valve casinghaving a central vertical valve seat partition, forming sediment pocketsat both sides thereof, and a two- Way drain valve mounted Within thebottom of the casing and adapted to have its ports connect with eitherof the sediment pockets,

to provide for relieving the casing of the sediment which collects atboth sides of its valve seat substantially as set forth.

6. The valve casing having a central vertical valve seat partition, acylindrical valve chamber located at the lower end of the partition andprovided with a lower threaded opening and sideports opening atboth'sides of thepartition, and a twoway exteriorly threaded valve plugfitted in said chamber and having a central vertical drain passage andseparate passages or ports communicating with the central drain passageand with either of the side ports in the valve chamber,

to relieve the same of the sediment which 001- WM; B. SMITH, H. A.BOOTH.

